Red stone Typer Writer read description

www.planetminecraft.com/project/redstone-type-writer/Link to world, feel free to try it out yourself and be amazed at wiring (simply open the zip file and drag world to your saves in your application suport minecraft folder)
Also, there is a nice electric tic tac toe board on it.
credit to RSW (He made it first and I got the idea from him, but I created this one by myself)

Honestly, I think I could make a type writer like this.
I know that I wouldn't be able to do the delete button though, so it'd be a one time use thing. Plus it'd wind up taking lots of space, as compact isn't my thing.